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Introduction:
It's delighted to share a new RF PCB which made of RO3210 25mil
laminates. The RO3210 high-frequency circuit materials are a
game-changer in the world of PCBs. These ceramic-filled laminates,
reinforced with woven fiberglass, offer exceptional electrical
performance and mechanical stability. Designed with the aim of
providing improved mechanical stability, RO3210 laminates combine
the surface smoothness of a non-woven PTFE laminate with the
rigidity of a woven-glass PTFE laminate. This article dives deep
into the features, benefits, construction details, and applications
of the newly shipped RO3210-based PCB.
Features:
The RO3210 material boasts an impressive array of features that set
it apart from conventional circuit materials. These include:
1. Dielectric constant (Dk) of 10.2 +/- 0.5, ensuring precise
signal transmission.
2. Dissipation factor of .0027 at 10GHz, minimizing signal loss.
3. Coefficient of thermal expansion matched to copper, promoting
excellent thermal stability.
4. Decomposition Temperature (Td) of 500°C TGA, ensuring
high-temperature resilience.
5. Coefficient of Thermal Expansion (CTE) of 13 ppm/°C (x and y
axes) and 34 ppm/°C (z axis), providing dimensional stability.
6. Thermal Conductivity of 0.81W/mK, facilitating efficient heat
dissipation.
7. Flammability rating of V0 UL 94 standard, ensuring safety and
compliance.
Property | Typical Value RO3210 | Direction | Unit | Condition | Test Method |
Dielectric Constant, r Process | 10.2± 0.50 | Z | - | 10 GHz 23°C | IPC-TM-650 2.5.5.5 Clamped Stripline |
Dielectric Constant, r Design | 10.8 | Z | - | 8 GHz - 40 GHz | Differential Phase Length Method |
Dissipation Factor, tan | 0.0027 | Z | - | 10 GHz 23°C | IPC-TM-650 2.5.5.5 |
Thermal Coefficient of r | -459 | Z | ppm/°C | 10 GHz 0-100°C | IPC-TM-650 2.5.5.5 |
Dimensional Stability | 0.8 | X,Y | mm/m | COND A | ASTM D257 |
Volume Resistivity | 103 | M•cm | COND A | IPC 2.5.17.1 | |
Surface Resistivity | 103 | M | COND A | IPC 2.5.17.1 | |
Tensile Modulus | 579 517 | MD CMD | kpsi | 23°C | ASTM D638 |
Water Absorption | <0.1 | - | % | D24/23 | IPC-TM-650 2.6.2.1 |
Specific Heat | 0.79 | J/g/K | Calculated | ||
Thermal Conductivity | 0.81 | - | W/m/K | 80°C | ASTM C518 |
Coefficient of Thermal Expansion (-55 to 288 °C) | 13 34 | X,Y, Z | ppm/°C | 23°C/50% RH | IPC-TM-650 2.4.41 |
Td | 500 | °C | TGA | ASTM D3850 | |
Color | Off White | ||||
Density | 3.0 | gm/cm3 | |||
Copper Peel Strength | 11.0 | pli | 1 oz. EDC After Solder Float | IPC-TM-2.4.8 | |
Flammability | V-0 | UL 94 | |||
Lead Free Process Compatible | YES |
Benefits:
The RO3210 substrate offers a range of benefits that enhance its
performance and usability:
1. Woven glass reinforcement improves rigidity, making it easier to
handle during fabrication.
2. Uniform electrical and mechanical performance makes it ideal for
complex multi-layer high-frequency structures.
3. Low in-plane expansion coefficient matched to copper enables use
with epoxy multi-layer board hybrid designs and reliable
surface-mounted assemblies.
4. Excellent dimensional stability ensures high production yields.
5. Surface smoothness allows for finer line etching tolerances, expanding design possibilities.
PCB Stackup and Construction Details:
This PCB construction details encompass various specifications to
ensure optimal performance and adherence to high-quality standards.
These include the board dimensions of 20mm x 20mm with a tolerance
of +/- 0.15mm, a minimum trace/space requirement of 6/6 mils, and a
minimum hole size of 0.25mm. The PCB does not include blind vias
and has a finished board thickness of 0.8mm. The outer layers have
a finished copper weight of 1oz (1.4 mils), and the via plating
thickness measures 20 μm. The surface finish is achieved through
immersion tin, while there is no top or bottom silkscreen or solder
mask. Additionally, a comprehensive 100% electrical test is
conducted prior to shipment, ensuring the PCB's reliability and
functionality.
PCB Statistics:
This PCB incorporates three components and a total of six pads,
including four thru-hole pads and two top surface mount technology
(SMT) pads. Additionally, it features six vias and two nets,
enabling efficient electrical connectivity.
Quality Standard and Availability:
This PCB adheres to the IPC-Class-2 quality standard, guaranteeing
its superior manufacturing quality and reliability. It is available
worldwide, allowing engineers and designers from various regions to
access this cutting-edge technology.
Typical Applications:
The versatility of the RO3210 PCB makes it suitable for a wide
range of applications, including:
- Automotive collision avoidance systems
- Automotive global positioning satellite antennas
- Wireless telecommunications systems
- Microstrip patch antennas for wireless communications
- Direct broadcast satellites
- Datalink on cable systems
- Remote meter readers
- Power backplanes
- LMDS and wireless broadband
- Base station infrastructure
Conclusion:
The introduction of the RO3210 high-frequency PCB marks a
significant milestone in the industry. With its exceptional
features, benefits, and adherence to quality standards, this PCB
offers unmatched performance and reliability. Whether in
automotive, wireless communications, or satellite systems, the
RO3210 PCB ensures superior signal integrity, thermal stability,
and dimensional accuracy. Its availability worldwide makes it
accessible to engineers and designers globally. Embrace the future
of PCB technology by incorporating the RO3210 PCB into your next
project.